Wrench.



No. 801,009. PATENTED 00T. 3, 1905. G. W. HEYL.

WRENCH.

APPLICATION FILED 1320.29, 1904.

UNITED sTATEs PATENT OFFIOF.

WRENCH.

Specification of Letters Patent.

Patented Oct. 3, 1905.

Application filed December 29, 1904. Serial No. 238,744.

, T0 (t/Z whom it may concern:

Be it known that I, GEORGE WILLIAM HEYL, a citizen of the United States of America, residing at lVestview, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in I/Vrenches, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in wrenches, and has for its object to provide a novel form of wrench which can be easily and quickly adjusted.

Another object of this invention is to provide a wrench which will be extremely simple in construction, strong and durable, comparatively inexpensive to manufacture, and highly efficient when used.

Briefly described, my improved wrench consists of a shank having a fixed jaw and a handle, and upon the shank is slidably mounted a jaw, which is locked thereon by a novel form of nut. rIhe shank of the wrench is provided with a screw-stem which extends upwardly into the adjustable jaw, and the novel form of nut is adapted to engage the screw-stem to lock the jaw in its adjusted position.

The above construction will be hereinafter more fully described and then specifically pointed out in the claims, and, referring to the drawings accompanying this application, like numerals of reference designate corresponding parts throughout the several views, in which- Figure 1 is a side elevation of my improved wrench. Fig. 2 is an edge view of the same. Fig. 3 is a vertical sectional View of my improved wrench. Fig. 4 is a detail side elevation of a novel form of nut used in connection with my improved wrench. Fig. 5 is a vertical sectional view of the same, and Fig. 6 is a detail view of a spring used in connection with the nut.

To put my invention into practice, I construct my improved wrench of a shank portion 1, carrying a handle 2 upon its one end and a jaw 3 upon its opposite end. The shank of the wrench is provided near its lower end with an outwardly-extending arm or lug 4, in which is secured an upwardly extending screw-threaded stem 5, this stem extending upwardly parallel to the shank 1.

The,reference-numeral 6 designates an adjustable jaw which is slidably mounted upon the shank 1, and this jaw in its lower face is provided with the recesses? and 8, which are adapted to receive the upper end of the screws threaded stem 5. Upon the screw-threaded stem and retained within the recess 7 is a nut 9.

The nut 9 is clearly illustrated in Figs. 4 and 5 of the drawings, and consists of two members 10 and 11, substantially semicylindrical in cross-section, and the lower end of each member is provided with a knurled flange 12. The upper ends of the members are tapered, as indicated at 14, and the inner faces of each member are cut away, as indicated at 15. The inner faces of the upper ends of the members 10 and 11 are provided with threads 16, corresponding in pitch to the screw-threads of the stem 5. The two members are held together by a ring 17, which surrounds the members 10 and 11, said ring seating in an annular groove 18, formed in said members, preferably near the lower end thereof. Theinner face of the flanges 12 12 are provided with grooves 19 in which a spring-ring 2O seats, this spring-ring normally holding the members in the closed position illustrated in Figs. 4 and 5 of the drawings. rlhe edges of the members 10 11 are out away on each side of the nut from the bottom thereof through the knurled flange 12 and for a short distance above the same, so as to form shoulders 15 15', and when the nut is compressed, as will be 'presently described, these shoulders constitute a fulcrum-point for the two members.

The reference-numeral 21 designates an angular spring-arm, which is secured to the lower edge of the adjustable jaw 6 and is adapted to engage the under face of the flange 12 and hold the nut 9 in close proximity to the adjustable jaw.

The manner of manipulating the wrench is as follows: It will be observed by referring to Figs. 4 and 5 of the drawings that the nut is at all times held in engagement with the screwthreaded stem 5, and in Fig. 3 of the drawings it will be observed that the jaw 6 rests upon the nut 9, and on account of the tapering ends 14 14 of the nut the jaw will force the members 10 and 11 of the nut into flrm engagement with the screw-threaded stem 5. Then it is desired 'to move the jaw 6, the flanges 12 12 of the nut are pressed inwardly, contracting the spring 2O and bringing the shoulders 15 15 together and opening the upper ends of the nut, as illustrated in dotted lines, Fig. 5. At this time the jaw can be moved upon the shank to any desired position, and when the jaw is moved downwardly the screw-threaded stem 5 recedes into the recess 8. Upon the nut 9 being re- IOO leased this spring Q0 returns it to its normal position in engagement with the screw-threaded stern 5, as clearly illustrated in Fig. 4l of the drawings.

It will be observed from the foregoing description thatI have provid ed a wrench which can be quickly adjusted and that the novel manner of locking the nut in engagement with the screw-threaded stem Will prevent the adjustable jaw from slipping.

vWhileI have herein illustrated the preferred manner ot' constructing my improved wrench, it is obvious that various changes may be made in the details of construction without departing from the general spirit and scope of the invention.

What I claim, and desire to secure by Letters Patent, is-

l. In a wrench of the character described, the combination with a shank having a iiXed head and a handle, of a screw-threaded stern carried by said shank, a sliding jaw mounted on said shank and having a tapering recess receiving said stem, a two-part nut embracing upon said shank, said jaw having recesses,

formed therein, in which said stem is adapted to protrude, one of said recesses having tapering sides, a two-part tapering hinged nut adapted to normally engage said stem` a spring-arm carried by said jaw and engaging said nut to sustain the same in position relatively to the jaw substantially as described.

In testimony whereotI I aX my signature in the presence of two witnesses.

GEORGE WILLIAM HEYL.

Witnesses:

H. C. EVERT, FLORENCE HEYL. 

